We have developed a special-purpose computer for analyzing X-ray scattering of models of macromolecules, named XSAM-2 (solution X-ray Scattering Analysis of Macromolecules). XSAM-2 contains 64 circuits operating in parallel for calculating X-ray scattering intensities using the pipeline method. XSAM-2 calculates 122 times faster than a personal computer with a Pentium 4 processor.
